TABLE 4.

Bivariate linear regression models (OLS) of the census tract number of calls for each predictors included in the analysis.

	Predictor	Estimate	Standard error	p
1	Poverty	113.1	16.31	≤0.0001
2	Black	30.37	7.42	≤0.0001
3	Older units	70.97	10.67	≤0.0001
4	Rental units	3.97	13.62	0.771
5	Elderly	−8.63	20.48	0.674
6	Disadvantage	140.19	19.96	≤0.0001
7	Affluence	−127.23	16.82	≤0.0001
8	Distance to interceptor	−5.92	9.88	0.549
9	Elevation	−5.38	3.58	0.135

Note: Estimates for poverty, Black households, older units, rental units, elderly residents, and ethnic immigrant households represent the change in the number of calls given a 10% increase. Disadvantage and advantage represent the change in the number of calls given a 0.1 change in either. Estimates for distance to interceptor and elevation on the predicted change in flood calls are given calculated given a 1 km and 1 m increase, respectively.